Home / 29,519.28-40,713.57-18,909.90

Finding the Fourth Proportional to 29,519.28, 40,713.57 and 18,909.90

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Solution

The fourth proportional to 29,519.28, 40,713.57 and 18,909.90 is: 26,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,519.28 : 40,713.57 = 18,909.90 : x
  2. Step 2: Convert to fraction form
    29,519.28/40,713.57 = 18,909.90/x
  3. Step 3: Cross multiply
    29,519.28x = 40,713.57 × 18,909.90
  4. Step 4: Simplify right side
    29,519.28x = 769,889,537.34
  5. Step 5: Solve for x
    x = 769,889,537.34/29,519.28
  6. Step 6: Final answer
    x = 26,080.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.